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PHP Improper Input Validation Vulnerability - CVE-2021-21705 - Vulnerability Database
PHP

PHP Improper Input Validation Vulnerability - CVE-2021-21705

Medium
Reference: CVE-2021-21705
NVD Link: https://nvd.nist.gov/vuln/detail/CVE-2021-21705
Title: PHP Improper Input Validation Vulnerability
Overview:

In PHP versions 7.3.x below 7.3.29 7.4.x below 7.4.21 and 8.0.x below 8.0.8 when using URL validation functionality via filter_var() function with FILTER_VALIDATE_URL parameter an URL with invalid password field can be accepted as valid. This can lead to the code incorrectly parsing the URL and potentially leading to other security implications - like contacting a wrong server or making a wrong access decision.